Adjusting The Offset - Christie CP2420-Xe Installation And Setup Manual

3. Perform a preliminary focus and, if available, a zoom adjustment with the primary lens.
Focus the center of the image first.
4. Ideally, the image should be centered on the lens and if it is not aligned to the screen in case,
start by physically moving the projector; however, if not possible, use the lens shift
5. With the Framing test pattern on screen, re-check the projector leveling so the top edge of the
image is parallel to the top edge of the screen.

Adjusting the offset

Learn how to adjust the offset.
Always adjust offset before boresight.
As boresight is adjusted, the lens offset may require additional minor adjustments.
1. Project an image with the primary lens.
2. Select a framing test pattern and then adjust the horizontal and vertical offset to display a
square image on the screen with minimal projector aiming error.
A Horizontal offset
B Horizontal boresight bolt
C Anchor bolt
D Vertical offset
For the best optical performance and to minimize keystone error, use offset rather than aiming
to center the image in off-axis installations. Avoid extreme tilts or offsets. Corner vignettes on
a white test pattern indicate extreme offset that should be corrected by using mechanical
alignment.
CP2420-Xe and CP4420-Xe Installation and Setup Guide
020-103555-01 Rev. 1 (03-2022)
Copyright © 2022 Christie Digital Systems USA, Inc. All rights reserved.
E Lens lock
F Focus
G Vertical boresight bolt
Adjusting the image
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